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Reliability and validity of the Turkish Nose Obstruction Symptom Evaluation (NOSE) scale

Karahatay, Serdar; Tasli, Hamdi; Karakoç, Ömer; Aydin, Ümit; Türker, Türker.
Turk J Med Sci; 48(2): 212-216, 2018 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-29714430


The aim of this study was to validate the Turkish Nasal Obstruction Symptom Evaluation (T-NOSE) scale.


The NOSE scale was translated into Turkish. A prospective study was conducted involving adult subjects with nasal obstruction and a control group. The patients were divided into three groups, namely nasal septum deviation (NSD), septoplasty, and control groups. Internal consistency, test-retest reliability, validity, responsiveness, and the magnitude of the effect of surgery were all investigated.


In total, 253 subjects were enrolled in the study. Cronbach's alpha was 0.938 and 0.942 upon test and retest, respectively, which proved good internal consistency. The mean kappa value was 0.82, indicating a high level of reproducibility. The difference between postoperative and control groups was not statistically significant (P < 0.05). The T-NOSE score of the NSD group was 65.67 ± 16.77, while it was 10.75 ± 12.25 for the control group (P < 0.01). The mean score improved following septoplasty (P < 0.001). The magnitude of the effect of surgery was considered high. The correlation between the visual analogue scale and NOSE scores was 0.948.


The T-NOSE scale is a valid instrument with good internal consistency, reliability, reproducibility, validity, and responsiveness.